[Scummvm-devel] Ogg (Tremor) on low-end devices

[Max Horn]

Am 27.06.2007 um 10:54 schrieb Lars Persson:

> Hi!
> Thanks for all of the input on Ogg. I have been porting all  
> variants of
> Ogg(Tremor), and any kind of optimization is welcome.
>
> As for support, I think its easier for some people to convert to  
> mp3, than
> to convert to ogg since there are more tools available for mp3  
> compression
> and audio ripping.

For CD ripping, aye. For example, on a Mac, everybody has iTunes  
which can rip audio tracks to MP3 or WAV, but not Ogg. But for  
compressing game data files, if we offer a tool which can recompress  
your data files using Ogg with a click, but can't do the same for MP3  
(due to licensing reasons), the situation changes a bit. Personally  
I'd prefer if we (a) could support both formats in our GUI  
compression tool, and (b) if we support either MP3, or Ogg, on *all*  
platforms. Right now some platforms only support Ogg and some only  
MP3, so if you want to use devices from both categories, you need to  
recompress your data files at least twice.

Note that my own music collection consists mostly out of MP3, I am  
not using Ogg Vorbis myself for anything but ScummVM related stuff,  
i.e. I am not following a secret agenda here or anything like that :-).


> When it comes to the performance, I really dont see too much  
> difference
> between the Tremor library and MAD Mp3, since both are quite well
> implemented, using integer math, compared to many other MP3  
> packages I have
> tried in my days.

OK. How about memory usage, is there a noticeable difference?

>
> Perhaps we should have a better overview on the Wiki for different  
> ports, at
> least the Symbian version is a totally havoc of different device  
> platforms
> and different devices in each category. :-) Having a table for  
> different
> ports and beeing able to navigate from there would be great.

Indeed! We could add a "port template" like we have a "game template"  
which has fields like "Port is official since version... " and "Ogg  
support?", "MP3 support?", etc. Any volunteers? Ideally people who  
know the resp. ports *g*


Bye,
Max